Machine King - 3000 B.C.

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Special Summon this card as an Effect Monster (Machine-Type/EARTH/Level 4/ATK 1000/DEF 1000). (This card is also still a Trap Card.) You cannot Normal or Special Summon another monster the turn you activate this card. Once per turn, during your Main Phase: You can Tribute 1 Machine-Type monster; this card gains ATK equal to the Tributed monster's ATK, until the End Phase.